Corporeal components are rare materials used in the invention skill. Level 40 Invention is required to discover them at an Inventor's workbench and use them in a gizmo. However, this level is not required to obtain them. The ability to discover this component at the workbench for is purchased for 10 Dwarven Currency from the Dwarven tech tree. Discovering corporeal components award 9,184 invention xp.
Prior to the 16 May 2016 tech trees update, the requirement for discovering the ability to use corporeal components at a workbench was either 40 or 68 invention, depending on which tech tree the player had aligned to.